Severe egg-production  drops in turkey breeders in southcentral Missouri.
D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D004196:Disease Outbreaks / Q000662:veterinary*; D004531:Eggs; D005260:Female; D005779:Immunodiffusion; D009980:Influenza A virus / Q000276:immunology; D005585:Influenza in Birds / Q000175:diagnosis / Q000453:epidemiology*; D008923:Missouri; D014422:Turkeys
D000914:Antibodies, Viral